CN113684434A - Preparation method of Inconel nickel-chromium alloy wide medium plate - Google Patents
Preparation method of Inconel nickel-chromium alloy wide medium plate Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
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Abstract
The invention discloses a preparation method of an Inconel nickel-chromium alloy wide medium plate, which comprises the following steps: adopting a forged plate blank as a raw material, heating by one fire, and then discharging and rolling; cogging and rolling the forged plate blank to a calculation specification, and air cooling; peeling and grinding the semi-finished blank and cutting and blanking by water; heating and rolling by using second fire until the plate is rolled to the specification of a planned plate; carrying out solid solution heat treatment and straightening on the obtained plate, then carrying out water cutting blanking, then carrying out water cutting on the plate to obtain the finished product size, and then carrying out surface treatment on the material with the finished product size, wherein the finally prepared plate has the specification: the thickness is 5-30 mm, the width is 1500-2500 mm, and the length is not more than 8000 mm; the wide medium-thick plate structure produced by the method breaks through the size limitation, effectively solves the problems of large deformation resistance of the material, small processing temperature range and easy cracking, is beneficial to the integral forming during equipment manufacturing and composite plate processing, and reduces tailor welding.
Description
Technical Field
The invention belongs to the technical field of metal material processing, and particularly relates to a preparation method of an Inconel nickel-chromium alloy wide medium plate.
Background
The Inconel nickel-chromium alloy is an important corrosion-resistant metal material and is widely applied to the fields of petrochemical industry, nuclear power new energy, electrics and electronics, war industry and aerospace and the like; the large-size alloy medium plate has high processing difficulty, the large deformation resistance is shown, the requirements on the process and equipment capacity are high, and the alloy medium plate used in the market mainly depends on import for a long time.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a preparation method of an Inconel nickel-chromium alloy wide and medium plate. The technical problem to be solved by the invention is realized by the following technical scheme:
a preparation method of an Inconel nickel-chromium alloy wide and medium plate comprises the following steps:
step 1: charging an Inconel nickel-chromium alloy forging plate blank into a furnace and heating; the charging temperature is less than or equal to 850 ℃, the heating temperature is 1160-1180 ℃, the heat preservation time is Hx (1.3-1.5 min/mm), and H is the thickness of the Inconel nickel-chromium alloy forged plate blank;
step 2: cogging and rolling the heated Inconel nickel-chromium alloy forged plate blank, and air-cooling to obtain a first Inconel nickel-chromium alloy plate; wherein the finishing temperature is more than or equal to 950 ℃;
and step 3: heating the first Inconel nickel-chromium alloy plate, wherein the heating temperature is 1150-1180 ℃, and the heat preservation time is H1×(2～2.5min/mm)，H1Is the thickness of the first Inconel nickel chromium alloy sheet material;
and 4, step 4: rolling the heated first Inconel nickel-chromium alloy plate, and air-cooling to obtain a second Inconel nickel-chromium alloy plate; the width of the second Inconel nickel-chromium alloy plate is 80-100 mm larger than that of the finished Inconel nickel-chromium alloy wide medium-thick plate; the finishing temperature is more than or equal to 900 ℃;
and 5: carrying out solution treatment on the second Inconel nickel-chromium alloy plate, cooling and straightening to obtain a finished product of an Inconel nickel-chromium alloy wide and medium plate; wherein the temperature of the solution treatment is 1010-1040 ℃, and the heat preservation time is 3-4 min/mm; the thickness of the finished Inconel nickel-chromium alloy medium-thick plate is 5-30 mm, the width of the finished Inconel nickel-chromium alloy medium-thick plate is 1500-2500 mm, and the length of the finished Inconel nickel-chromium alloy medium-thick plate is not more than 8000 mm.
Further, the step 5 further comprises the step of carrying out surface treatment on the second Inconel nickel-chromium alloy medium-thickness plate after cooling and straightening to obtain a finished product of the Inconel nickel-chromium alloy wide and medium-thickness plate.
Further, the surface treatment is any one of sanding, sand blasting and acid washing.
The invention has the beneficial effects that:
1. the plate with the thickness of 5-30 mm, the width of 1500-2500 mm and the length of no more than 8000mm can be produced by the process, so that the specification of the Inconel nickel-chromium alloy plate product is broken through, the integral forming of Inconel nickel-chromium alloy equipment is facilitated, the tailor welding is reduced, and the safety of chemical equipment prepared by taking the Inconel nickel-chromium alloy as a raw material is improved;
2. the process effectively solves the problems of large deformation resistance, small processing temperature range and easy cracking of the Inconel nickel-chromium alloy material, and the obtained Inconel nickel-chromium alloy wide medium plate has excellent performance and high yield.
Drawings
FIG. 1 is a metallographic structure diagram of an Inconel 600 alloy wide medium-thick plate obtained in example 1;
FIG. 2 is a metallographic structure diagram of an Inconel 601 alloy wide medium-thick plate obtained in example 2;
FIG. 3 is a metallographic structure diagram of an Inconel 690 alloy wide medium-thick plate obtained in example 3;
fig. 4 is a metallographic structure diagram of an Inconel 625 alloy wide-width medium-thick plate obtained in example 4.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
Example 1
The embodiment of the invention provides a preparation method of an Inconel 600 alloy wide medium plate with the specification of 10 x 1500 x 5000mm, which specifically comprises the following steps:
step 1: brushing an oxidation-resistant coating on the surface of an Inconel 600 alloy forging plate blank with the size specification of 200 x 950 x 1700mm, and then putting the plate blank into a natural gas furnace for heating; and (3) heating to 1160-1180 ℃ along with the furnace at the charging temperature of less than or equal to 850 ℃, carrying out heat preservation, wherein the heat preservation time is Hx (1.3-1.5 min/mm), H is the thickness of the Inconel 600 alloy forged plate blank and is 200mm, 1.3-1.5 min/mm is a heating coefficient, and the heat preservation time of the Inconel 600 alloy forged plate blank is calculated to be 4.4-5.0H.
Step 2: discharging the Inconel 600 alloy forged plate blank subjected to heating and heat preservation in the step 1 out of a furnace, cogging and rolling, and air cooling to obtain a first Inconel 600 alloy plate; wherein the finishing temperature is more than or equal to 950 ℃.
Wherein the rolling equipment is a 3300mm hot rolling mill, and after cogging rolling, the specification of the obtained first Inconel 600 alloy plate is 55 x 1580 x Lmm, and L is the length.
Peeling and polishing the obtained first Inconel 600 alloy plate by using a resin grinding wheel, cutting and blanking by using water, calculating blanking size according to the specification of a finished product, wherein the volume of the blanked plate is equal to the sum of the volume of the subsequent rolling allowance and the volume of the finished product plate; the calculated blanking size was 55 × 1580 × 1050 mm.
And step 3: heating the first Inconel 600 alloy plate, wherein the low temperature or the direct temperature charging can be carried out, the heating temperature is 1160-1180 ℃, and the heat preservation time is H1×(2～2.5min/mm)，H1The thickness of the first Inconel 600 alloy plate is 55mm, and the calculated heat preservation time of the first Inconel 600 alloy plate is 1.9-2.2 h.
And 4, step 4: rolling the heated and heat-preserved first Inconel 600 alloy plate, and air-cooling to obtain a second Inconel 600 alloy plate; the thickness of the second Inconel 600 alloy plate is 10-10.6 mm, the width of the second Inconel 600 alloy plate is 1580mm, and the length of the second Inconel 600 alloy plate is not less than 5300 mm; the finishing temperature is more than or equal to 900 ℃.
And 5: carrying out solution treatment on the second Inconel 600 alloy plate, cooling and straightening the second Inconel 600 alloy plate, and then carrying out surface treatment on the second Inconel 600 alloy plate to obtain a finished product of the Inconel 600 alloy wide medium-thickness plate; wherein the temperature of the solution treatment is 1010-1040 ℃, the heat preservation time is 3-4 min/mm, and the product is taken out of the furnace and cooled by water after the heat preservation is finished; the specification of the obtained finished product Inconel 600 alloy wide medium-thick plate is 10 x 1500 x 5000 mm.
Specifically, the surface treatment may be any one of sanding, sand blasting, and acid washing.
The mechanical properties of the Inconel 600 alloy wide medium-thick plate are tested, and the test results are shown in Table 1:
table 1 Inconel 600 alloy wide medium-thick plate material mechanical property test results
| Numbering | Rm/Mpa | Rp0.2/Mpa | A50/(％) |
| H150790 | 656 | 288 | 46.5 |
| Standard value | ≥550 | ≥240 | ≥30 |
The test results show that all mechanical values of the Inconel 600 alloy wide medium-thick plate are higher than the standard value, and the structure of the prepared Inconel 600 alloy wide medium-thick plate is shown in figure 1, wherein the structure is an austenite structure, so that complete recrystallization is realized, and the structure is uniform and good.
The heat preservation time in the step 1 and the step 3 can ensure that the plate is burnt through and is easy to roll, and meanwhile, the plate blank can generate less oxide skin, and the energy consumption is reduced.
Example 2
The embodiment of the invention provides a preparation method of an Inconel 601 alloy wide and medium plate with the specification of 10 x 1500 x 6000mm, which specifically comprises the following steps:
step 1: brushing an oxidation-resistant coating on the surface of an Inconel 601 alloy forging plate blank with the dimension specification of 155 multiplied by 800 multiplied by 1350mm, and then putting the plate blank into a natural gas furnace for heating; and (3) heating to 1160-1180 ℃ along with the furnace at the charging temperature of less than or equal to 850 ℃, carrying out heat preservation for H x (1.3-1.5 min/mm), wherein H is the thickness of the Inconel 601 alloy forged plate blank and is 155mm, 1.3-1.5 min/mm is a heating coefficient, and calculating the heat preservation time of the Inconel 601 alloy forged plate blank to be 3.4-3.8H.
Step 2: discharging the Inconel 600 alloy forged plate blank subjected to heating and heat preservation in the step 1 out of the furnace, cogging and rolling, and air cooling to obtain a first Inconel 601 alloy plate; wherein the finishing temperature is more than or equal to 950 ℃.
Wherein the rolling equipment is a 3300mm hot rolling mill, and after cogging rolling, the specification of the obtained first Inconel 601 alloy plate is 55 x 1580 x Lmm, and L is the length.
Peeling and polishing the obtained first Inconel 601 alloy plate by using a resin grinding wheel, cutting and blanking by using water, calculating blanking size according to the specification of a finished product, wherein the volume of the blanked plate is equal to the sum of the volume of the subsequent rolling allowance and the volume of the finished product plate; the calculated blanking size was 55 × 1580 × 1240 mm.
And step 3: heating the first Inconel 601 alloy plate, wherein the Inconel 601 alloy plate can be directly loaded in a furnace at a low temperature or at a low temperature, the heating temperature is 1160-1180 ℃, and the heat preservation time is H1×(2～2.5min/mm)，H1The thickness of the first Inconel 601 alloy plate is 55mm, and the calculated heat preservation time of the first Inconel 601 alloy plate is 1.9-2.2 h.
And 4, step 4: rolling the heated and heat-preserved first Inconel 601 alloy plate, and air-cooling to obtain a second Inconel 601 alloy plate; the thickness of the second Inconel 601 alloy plate is 10-10.6 mm, the width of the second Inconel 601 alloy plate is 1580mm, and the length of the second Inconel 601 alloy plate is more than or equal to 6400 mm; the finishing temperature is more than or equal to 900 ℃.
And 5: carrying out solution treatment on the second Inconel 601 alloy plate, cooling and straightening the second Inconel 601 alloy plate, and then carrying out surface treatment on the second Inconel 601 alloy plate to obtain a finished product of an Inconel 601 alloy wide medium-thickness plate; wherein the temperature of the solution treatment is 1050-1100 ℃, and the heat preservation time is 3-4 min/mm; and (4) discharging and water cooling after heat preservation is finished, and the specification of the obtained finished product Inconel 600 alloy wide medium-thick plate is 10 multiplied by 1500 multiplied by 6000 mm.
Specifically, the surface treatment may be any one of sanding, sand blasting, and acid washing.
The mechanical properties of the Inconel 601 alloy wide medium-thick plate are tested, and the test results are shown in table 2:
table 2 Inconel 601 alloy wide medium-thick plate material mechanical property test results
| Numbering | Rm/Mpa | Rp0.2/Mpa | A50/(％) |
| H151254 | 732 | 346 | 45.5 |
| Standard value | ≥550 | ≥205 | ≥30 |
The test results show that all mechanical values of the Inconel 601 alloy wide medium-thick plate are higher than the standard value, and the structure of the prepared Inconel 601 alloy wide medium-thick plate is shown in figure 2, wherein the structure is an austenite structure, so that complete recrystallization is realized, and the structure is uniform and good.
The heat preservation time in the step 1 and the step 3 can ensure that the plate is burnt through and is easy to roll, and meanwhile, the plate blank can generate less oxide skin, and the energy consumption is reduced.
Example 3
The embodiment of the invention provides a preparation method of an Inconel 690 alloy wide and medium plate with the specification of 8 x 2000 x 6000mm, which specifically comprises the following steps:
step 1: brushing an oxidation-resistant coating on the surface of an Inconel 690 alloy forging slab with the size specification of 200 x 1050 x 1700mm, and then putting the forging slab into a natural gas furnace for heating; and the charging temperature is less than or equal to 850 ℃, then the temperature is increased to 1150 ℃ along with the charging, the heat preservation time is Hx (1.3-1.5 min/mm), H is the thickness of the Inconel 690 alloy forging plate blank and is 200mm, 1.3-1.5 min/mm is the heating coefficient, and the heat preservation time of the Inconel 690 alloy forging plate blank is calculated to be 4.4-5.0H.
Step 2: discharging the Inconel 690 alloy forging plate blank subjected to heating and heat preservation in the step 1 out of a furnace, cogging and rolling, and air cooling to obtain a first Inconel 690 alloy plate; wherein the finishing temperature is more than or equal to 950 ℃.
Wherein the rolling equipment is a 3300mm hot rolling mill, and after cogging rolling, the specification of the obtained first Inconel 690 alloy plate material is 50X 1100X Lmm, and L is the length.
Peeling and polishing the obtained first Inconel 690 alloy plate by using a resin grinding wheel, cutting and blanking by using water, calculating blanking size according to the specification of a finished product, wherein the volume of the blanked plate is equal to the sum of the volume of the subsequent rolling allowance and the volume of the finished plate; the calculated blanking size was 50 × 1100 × 2080 mm.
And step 3: heating the first Inconel 690 alloy plate, wherein the temperature can be low or directly in a warm charging furnace, the heating temperature is 1150 ℃, and the heat preservation time is H1×(2～2.5min/mm)，H1The thickness of the first Inconel 690 alloy plate is 50mm, and the calculated heat preservation time of the first Inconel 690 alloy plate is 1.7-2.0 h.
And 4, step 4: rolling the heated and heat-preserved first Inconel 690 alloy plate, and air-cooling to obtain a second Inconel 690 alloy plate; the thickness of the second Inconel 690 alloy plate is 8-8.6 mm, the width of the second Inconel 690 alloy plate is 2080mm, and the length of the second Inconel 690 alloy plate is more than or equal to 6300 mm; the finishing temperature is more than or equal to 900 ℃.
And 5: carrying out solid solution treatment on the second Inconel 690 alloy plate, cooling and straightening the second Inconel 690 alloy plate, and then carrying out surface treatment on the second Inconel 690 alloy plate to obtain a finished product of the Inconel 690 alloy wide medium-thickness plate; wherein the temperature of the solution treatment is 1010-1040 ℃, the heat preservation time is 3-4 min/mm, and the product is taken out of the furnace and cooled by water after the heat preservation is finished; the specification of the obtained finished product Inconel 690 alloy wide medium-thick plate is 8 x 2000 x 6000 m.
Specifically, the surface treatment may be any one of sanding, sand blasting, and acid washing.
The mechanical properties of the Inconel 690 alloy wide medium-thick plate were tested, and the test results are shown in table 3:
TABLE 3 results of various mechanical property tests of Inconel 690 alloy wide medium-thick plate
| Numbering | Rm/Mpa | Rp0.2/Mpa | A50/(％) |
| H150057 | 740 | 370 | 46 |
| Standard value | ≥586 | ≥240 | ≥30 |
The test result shows that all mechanical values of the Inconel 690 alloy wide medium-thick plate are higher than a standard value, and the structure of the prepared Inconel 690 alloy wide medium-thick plate is shown in figure 3, wherein the shown structure is an austenite structure, so that complete recrystallization is realized, and the structure is uniform and good.
The heat preservation time in the step 1 and the step 3 can ensure that the plate is burnt through and is easy to roll, and meanwhile, the plate blank can generate less oxide skin, and the energy consumption is reduced.
Example 4
The embodiment of the invention provides a preparation method of an Inconel 625 alloy wide medium plate with the specification of 10 x 2000 x 3600mm, which specifically comprises the following steps:
step 1: brushing an oxidation-resistant coating on the surface of an Inconel 625 alloy forging plate blank with the size specification of 120 x 800 x 2200mm, and then putting the plate blank into a natural gas furnace for heating; and (3) heating to 1160-1180 ℃ along with the furnace at the charging temperature of less than or equal to 850 ℃, carrying out heat preservation, wherein the heat preservation time is Hx (1.3-1.5 min/mm), H is the thickness of the Inconel 625 alloy forged plate blank and is 120mm, 1.3-1.5 min/mm is a heating coefficient, and the heat preservation time of the Inconel 625 alloy forged plate blank is calculated to be 2.6-3.0H.
Step 2: discharging the Inconel 625 alloy forged plate blank subjected to heating and heat preservation in the step 1 out of a furnace, cogging and rolling, and air cooling to obtain a first Inconel 625 alloy plate; wherein the finishing temperature is more than or equal to 950 ℃.
Wherein the rolling equipment is a 3300mm hot rolling mill, and after cogging rolling, the specification of the obtained first Inconel 625 alloy plate is 45 x 1100 x Lmm, and L is the length.
Peeling and polishing the obtained first Inconel 625 alloy plate by using a resin grinding wheel, cutting and blanking by using water, calculating blanking size according to the specification of a finished product, wherein the volume of the blanked plate is equal to the sum of the volume of the subsequent rolling allowance and the volume of the finished product plate; the calculated blanking size was 45 × 1100 × 2080 mm.
And step 3: heating the first Inconel 625 alloy plate, wherein the Inconel 625 alloy plate can be directly loaded in a furnace at a low temperature or at a low temperature, the heating temperature is 1160-1180 ℃, and the heat preservation time is H1×(2～2.5min/mm)，H1The thickness of the first Inconel 625 alloy plate is 45mm, and the calculated heat preservation time of the first Inconel 625 alloy plate is 1.5-1.8 h.
And 4, step 4: rolling the heated and heat-preserved first Inconel 625 alloy plate, and air-cooling to obtain a second Inconel 625 alloy plate; the thickness of the second Inconel 625 alloy plate is 10-10.6 mm, the width of the second Inconel 625 alloy plate is 2080mm, and the length of the second Inconel 625 alloy plate is not less than 3800 mm; the finishing temperature is more than or equal to 900 ℃.
And 5: carrying out solution treatment on the second Inconel 625 alloy plate, cooling and straightening the second Inconel 625 alloy plate, and then carrying out surface treatment on the second Inconel 625 alloy plate to obtain a finished product of an Inconel 625 alloy wide medium-thickness plate; wherein the temperature of the solution treatment is 980-1020 ℃, the heat preservation time is 3-4 min/mm, and the product is taken out of the furnace and cooled by water after the heat preservation is finished; the specification of the obtained finished product Inconel 625 alloy wide medium-thick plate is 10 x 2000 x 3600 m.
Specifically, the surface treatment may be any one of sanding, sand blasting, and acid washing.
The mechanical properties of the Inconel 625 alloy wide medium-thick plate are tested, and the test results are shown in table 4:
TABLE 4 results of various mechanical property tests of Inconel 625 alloy wide medium-thick plate
The test results show that all mechanical values of the Inconel 625 alloy wide medium-thick plate are higher than the standard value, and the structure of the prepared Inconel 625 alloy wide medium-thick plate is shown in FIG. 4, wherein the shown structure is an austenite structure, complete recrystallization is realized, and the structure is uniform and good.
The heat preservation time in the step 1 and the step 3 can ensure that the plate is burnt through and is easy to roll, and meanwhile, the plate blank can generate less oxide skin, and the energy consumption is reduced.
The Inconel nickel-chromium alloy wide plate produced by the process breaks through the size limitation, is beneficial to the integral forming during equipment manufacturing and composite plate processing, reduces tailor welding, and simultaneously utilizes the powerful rolling force, large deformation, heat treatment finishing means and the like of a hot rolling mill, so that the yield and the mechanical property of the product completely meet the requirements of relevant standards, and the product has excellent quality.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (3)
1. A preparation method of an Inconel nickel-chromium alloy wide and medium plate is characterized by comprising the following steps:
step 1: charging an Inconel nickel-chromium alloy forging plate blank into a furnace and heating; the charging temperature is less than or equal to 850 ℃, the heating temperature is 1160-1180 ℃, the heat preservation time is Hx (1.3-1.5 min/mm), and H is the thickness of the Inconel nickel-chromium alloy forged plate blank;
step 2: cogging and rolling the heated Inconel nickel-chromium alloy forged plate blank, and air-cooling to obtain a first Inconel nickel-chromium alloy plate; wherein the finishing temperature is more than or equal to 950 ℃;
and step 3: heating the first Inconel nickel-chromium alloy plate, wherein the heating temperature is 1150-1180 ℃, and the heat preservation time is H1×(2～2.5min/mm)，H1Is the thickness of the first Inconel nickel chromium alloy sheet material;
and 4, step 4: rolling the heated first Inconel nickel-chromium alloy plate, and air-cooling to obtain a second Inconel nickel-chromium alloy plate; the width of the second Inconel nickel-chromium alloy plate is 80-100 mm larger than that of the finished Inconel nickel-chromium alloy wide medium-thick plate; the finishing temperature is more than or equal to 900 ℃;
and 5: carrying out solution treatment on the second Inconel nickel-chromium alloy plate, cooling and straightening to obtain a finished product of an Inconel nickel-chromium alloy wide and medium plate; wherein the temperature of the solution treatment is 1010-1040 ℃, and the heat preservation time is 3-4 min/mm; the thickness of the finished Inconel nickel-chromium alloy medium-thick plate is 5-30 mm, the width of the finished Inconel nickel-chromium alloy medium-thick plate is 1500-2500 mm, and the length of the finished Inconel nickel-chromium alloy medium-thick plate is not more than 8000 mm.
2. The method for preparing the Inconel nickel-chromium alloy wide and medium plate according to claim 1, wherein the step 5 further comprises the step of performing surface treatment on the second Inconel nickel-chromium alloy medium plate after cooling and straightening to obtain the finished Inconel nickel-chromium alloy wide and medium plate.
3. The method for preparing the Inconel nickel-chromium alloy wide and medium plate according to claim 2, wherein the surface treatment is any one of sanding, sand blasting and acid pickling.
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| JPS57149441A (en) * | 1981-03-12 | 1982-09-16 | Res Inst Electric Magnetic Alloys | Elinver type alloy for high temperature and preparation thereof |
| CN103540803A (en) * | 2013-10-30 | 2014-01-29 | 钢铁研究总院 | High hardness non-magnetic nichrome and preparation method thereof |
| CN112496037A (en) * | 2020-11-16 | 2021-03-16 | 太原钢铁(集团)有限公司 | Nickel-based alloy plate rolling method |
| CN112553518A (en) * | 2020-11-02 | 2021-03-26 | 抚顺特殊钢股份有限公司 | Manufacturing method of iron-nickel-chromium-based corrosion-resistant alloy hot-rolled bar for nuclear power evaporator |
| CN112575212A (en) * | 2020-12-31 | 2021-03-30 | 江苏新核合金科技有限公司 | Production process of nickel-based alloy medium-thickness plate material for nuclear power station |
-
2021
- 2021-07-29 CN CN202110864588.5A patent/CN113684434A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57149441A (en) * | 1981-03-12 | 1982-09-16 | Res Inst Electric Magnetic Alloys | Elinver type alloy for high temperature and preparation thereof |
| CN103540803A (en) * | 2013-10-30 | 2014-01-29 | 钢铁研究总院 | High hardness non-magnetic nichrome and preparation method thereof |
| CN112553518A (en) * | 2020-11-02 | 2021-03-26 | 抚顺特殊钢股份有限公司 | Manufacturing method of iron-nickel-chromium-based corrosion-resistant alloy hot-rolled bar for nuclear power evaporator |
| CN112496037A (en) * | 2020-11-16 | 2021-03-16 | 太原钢铁(集团)有限公司 | Nickel-based alloy plate rolling method |
| CN112575212A (en) * | 2020-12-31 | 2021-03-30 | 江苏新核合金科技有限公司 | Production process of nickel-based alloy medium-thickness plate material for nuclear power station |
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